"low implantation of placenta"^^ . . "SNOMEDCT_US_2021_09_01:198897009"^^ . "UMLS_CUI:C0156617"^^ . . "DOID:1677"^^ . . "disease_ontology"^^ . "DOID:2167"^^ . "DOID:1676"^^ . "ICD9CM:641.0"^^ .